Moose was accompanying his wife to deliver a bouquet of Gracideas to his wife's great-grandmother for her hundredth birthday. On a train they met up with Ash, Brock, Dawn, Shaymin, Ogin, Shun, Taka and Kako. He told them that he used to hike a lot and witnessed Shaymin's flower bearing once before. Shortly after, he watched Shaymin transform into its Sky Forme. Following this, the train was attacked by Zero's Magnemite, Magneton and Magnezone, but Ash, Dawn and Shaymin were able to drive them off. He later said his goodbyes to Ash, his friends and Shaymin as they set off on a ferry to the flower garden of Gracidea, but met up with them again some time later, when Ash and his friends visited Layla's great-grandmother's birthday party.